Six Peaks Visible in the Redshift Distribution of 46,400 SDSS Quasars Agree with the Preferred Redshifts Predicted by the Decreasing Intrinsic Redshift Model

摘要

The redshift distribution of all 46,400 quasars in the Sloan Digital SkySurvey (SDSS) Quasar Catalog III, Third Data Release, is examined. Six Peaksthat fall within the redshift window below z = 4, are visible. Their positionsagree with the preferred redshift values predicted by the decreasing intrinsicredshift (DIR) model, even though this model was derived using completelyindependent evidence. A power spectrum analysis of the full dataset confirmsthe presence of a single, significant power peak at the expected redshiftperiod. Power peaks with the predicted period are also obtained when the upperand lower halves of the redshift distribution are examined separately. Theperiodicity detected is in linear z, as opposed to log(1+z). Because the peaksin the SDSS quasar redshift distribution agree well with the preferredredshifts predicted by the intrinsic redshift relation, we conclude that thisrelation, and the peaks in the redshift distribution, likely both have the sameorigin, and this may be intrinsic redshifts, or a common selection effect.However, because of the way the intrinsic redshift relation was determined itseems unlikely that one selection effect could have been responsible for both.